Description
Handsheets are fundamental for all laboratory physical tests for pulp and paper. Handsheets are formed by the drainage of a pulp suspension through a forming wire screen gauze and must be pressed before being dried on air. The SP-21 is indicated for pressing handsheets according to applicable international technical standards ISO and TAPPI. The pressing determined by standards is absolutely necessary to achieve repeatability and reproducibility of the handsheets.
![J-100 [1800 (7% consistency)]](https://www.thwingalbert.com/wp-content/uploads/2021/07/ard_j100hpulper_1.jpg)
